11. Bonding & Molecular Structure
Bond Energy
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ANSWERS OPTIONS
A
—124 kJ/mol
B
—154 kJ/mol
C
—172 kJ/mol
D
—190 kJ/mol
Unsaturated hydrocarbons react with chlorine to produce dichloro alkanes. Use a table of average bond energies to calculate the reaction enthalpy (ΔHrxn) for the following chlorination reaction:
H3C—CH=CH2(g) + Cl2(g) → H3C—CH(Cl)—CH2—Cl(g)